Launching base capable of keeping bullet bottom pressure and launching device

Abstract

The invention provides a launching base capable of keeping bomb bottom pressure and a launching device.The bomb body launching base comprises a base body, a barrel, a combustible cartridge case, a piston internally provided with an ignition powder chamber and a fire transfer tube, the combustible cartridge case is arranged on the inner wall of the barrel, and a bullet is placed at the end, abutting against and located at a small-inner-diameter port of the barrel, of the small-diameter combustible cartridge case; the first end of the piston is connected to the small-diameter combustible cartridge case, the second end of the piston is clamped to the position, connected with the small-inner-diameter end, in the body tube, the rear flash tube is provided with a concentric double-tube section used for storing gunpowder in a gap, and the front flash tube is a hollow tube with one open end and the other closed end and used for storing the gunpowder. Gunpowder holes are evenly distributed in the outer wall of the front ignition tube and the outer wall of the concentric double-tube section, the ignition tube penetrates through the rear ignition tube and then is communicated with the ignition powder chamber, the ignition powder chamber is communicated with the gap of the concentric double-tube section through a first powder pipeline and is communicated with the open end of the front ignition tube through a second powder pipeline, and the front ignition tube and the rear ignition tube are both connected to the piston. The end, far away from the piston, of the rear flash tube is connected to the base to increase the initial velocity of the artillery.

Description

Technical Field

[0001] The present application relates to the technical field of projectiles, and in particular to a launching base and a launching device for maintaining the bottom pressure of a projectile. Background Art

[0002] Power, mobility and protection capability are the three major performance indicators of weapon systems. With the development of future wars and future forms, improving the power of artillery has become the main means to improve the combat effectiveness of weapons. To improve the power of artillery, it is first necessary to increase the initial velocity of artillery. Therefore, trying to increase the initial velocity of artillery is one of the main trends in the development of artillery.

[0003] At present, when a gun is fired, the combustion of the propellant drives the high-temperature and high-pressure gas to drive the projectile to move in the barrel. As the speed of the projectile increases rapidly, the space behind the projectile expands rapidly, which will cause the pressure in the chamber to decrease rapidly, which will cause the initial velocity of the gun to decrease. The technical approaches to increase the initial velocity of conventional guns are: lengthening the barrel, developing new propellants, increasing the chamber volume and charge amount, etc. These technical means either require further modification of the barrel space or increase the amount of gunpowder. Although these can increase the initial velocity of the gun, in essence, these technical means only increase the total amount of gunpowder energy acting on the projectile, and do not actually improve the efficiency of the projectile in utilizing the gunpowder energy. In addition, increasing the barrel length and changing the chamber volume will affect the overall size of the gun system. The development of new high-energy propellants will be limited by the development of chemical engineering. Based on this, it is imperative to study new gun firing technologies. Summary of the invention

[0004] The present application provides a launching base and a launching device for maintaining the bottom pressure of a projectile, so as to increase the initial velocity of a gun by maintaining the bottom pressure of the projectile without changing the barrel structure.

[0005] On the one hand, an embodiment of the present application provides a launching base for maintaining the bottom pressure of a missile, and the missile launching base includes:

[0006] Base,

[0007] The barrel is formed by transitionally connecting round tubes with different inner diameters, and the end of the round tube with a larger inner diameter of the barrel is installed on the base;

[0008] A combustible cartridge is arranged inside the inner wall of the barrel with different inner diameters, against and located at the end of the small-diameter combustible cartridge at the small-diameter port of the barrel for placing a projectile;

[0009] A piston with an ignition chamber, wherein the first end of the piston is connected to the small-diameter combustible cartridge, and the second end is clamped to the connection between the barrel and the small inner diameter end, wherein the first and second gunpowder pipes communicating with the ignition chamber are provided on opposite sides of the piston;

[0010] A fire transfer tube, comprising a front fire transfer tube, a rear fire transfer tube and a fire transfer tube with a built-in fuse, the rear fire transfer tube being provided with a concentric double tube section of a specified length and a gap for storing gunpowder, the front fire transfer tube being a hollow tube with one end open and the other end closed and the tube being used to store gunpowder, gunpowder holes being distributed on the outer walls of the front fire transfer tube and the concentric double tube section, the fire transfer tube being connected to the ignition powder chamber after passing through the rear fire transfer tube, the ignition powder chamber being connected to the gap for storing gunpowder formed by the inner and outer tubes of the concentric double tube section through the first gunpowder pipeline, and being connected to the open end of the front fire transfer tube through the second gunpowder pipeline, the front fire transfer tube and the rear fire transfer tube being both connected to the piston, the end of the rear fire transfer tube away from the piston being connected to the base, and the end of the fire transfer tube away from the piston being arranged in the base in a manner that the fuse is exposed to the outside of the base.

[0011] In some embodiments, the rear fire transfer tube also includes a single tube segment, one end of the single tube segment is connected to the inner tube of the concentric double tube segment, and the other end of the single tube segment is installed on the base, and the fire guide tube runs through the pipeline connecting the single tube segment and the concentric double tube segment.

[0012] In some embodiments, the piston includes a front piston and a rear piston, the front piston and the rear piston are both provided with a gunpowder groove, and the two gunpowder grooves are connected in a manner of facing each other to form an ignition chamber;

[0013] The end of the concentric double tube section is connected to the rear piston in a manner that the ignition tube is connected to the ignition chamber, and the gap formed by the inner and outer tubes of the concentric double tube section is connected to the rear piston through the first gunpowder pipeline;

[0014] The open end of the front fire tube is connected to the front piston in a manner that the second gunpowder pipe is connected to the piston.

[0015] In some embodiments, the rear piston is provided with an annular groove in its circumference, and the projectile launching seat further comprises an ammunition belt, which is wound in the annular groove and is in interference contact with the inner wall of the small inner diameter circular tube in the barrel.

[0016] In some embodiments, the rear piston is an annular platform structure with a first gunpowder groove at the end, and a through hole for the spark pipe to pass through the bottom of the first gunpowder groove and a first gunpowder pipeline for guiding the ignited gunpowder in the ignition chamber to spray toward the gap are provided; an annular groove is circumferentially provided at a set position on the outer side wall of the annular platform structure;

[0017] The front piston includes a boss piston structure and a boss stabilizing structure, a second gunpowder groove is provided at the boss of the boss piston structure, and a second gunpowder pipe is provided through the bottom of the second gunpowder groove; the boss stabilizing structure is a plate-like structure that penetrates the plate surface and is provided with an annular tube for installing the front fire tube, the boss piston structure and the boss stabilizing structure are connected in an installation manner in which the second gunpowder groove and the annular tube are deviated from each other, and the boss stabilizing structure and the boss piston structure are cooperatively connected in a manner in which the first gunpowder groove and the second gunpowder groove are oriented opposite to each other to form a sealed ignition chamber.

[0018] In some embodiments, a mounting groove for cooperating with the end of the combustible cartridge is circumferentially provided at the edge of the plate surface on the same side as the annular tube in the boss stabilizing structure.

[0019] In some embodiments, the outer wall of the fire tube is coated with a heat insulation layer.

[0020] In some embodiments, the connection strength between the front piston and the rear piston is greater than the pressure generated by the gunpowder in the ignition chamber after ignition; or / and

[0021] The first gunpowder pipe and the second gunpowder pipe are consistent in length and size.

[0022] In some embodiments, the tube section of the barrel having a large inner diameter and the tube section of the barrel having a small inner diameter are connected in a straight and smooth transition. When the fuse is not ignited, the bullet belt is clamped at the end of the small inner diameter tube adjacent to the barrel.

[0023] On the other hand, an embodiment of the present application provides a launching device, which includes the projectile launching base and projectile described in any of the above embodiments.

[0024] The technical solution provided by this application can at least achieve the following beneficial effects:

[0025] The present application provides a launching base and launching device for maintaining the bottom pressure of a projectile. The projectile launching base comprises: a base, a barrel formed by transition connection of round tubes with different inner diameters, a combustible cartridge, a piston with an ignition chamber and a fire transmission tube. The combustible cartridge is arranged in the inner wall of the barrel with different inner diameters, and a projectile is placed at the end of the small-diameter combustible cartridge located at the small inner diameter port of the barrel; the first end of the piston is connected to the small-diameter combustible cartridge, and the second end is clamped in the connection between the barrel and the small inner diameter end. The rear fire transmission tube is provided with The gap is used for storing gunpowder in the concentric double-tube section, the front fire tube of the fire tube is a hollow tube with one end open and the other end closed and used for storing gunpowder inside the tube, the outer walls of the front fire tube and the concentric double tube section are both distributed with gunpowder holes, the fire guide tube passes through the rear fire tube and is connected to the ignition chamber, the ignition chamber is connected to the gap of the concentric double tube section through the first gunpowder pipeline, and is connected to the open end of the front fire tube through the second gunpowder pipeline, the front fire tube and the rear fire tube are both connected to the piston, and the end of the rear fire tube away from the piston is connected to the base. It can be seen that the technical solution provided by the embodiment of the present application does not need to improve the original overall structure of the barrel nor increase the amount of gunpowder, but only by igniting the fuse, under the ignition of the ignition chamber, the piston enters the small inner diameter of the barrel as the mobile chamber to move in the straight bore, and the combustion body of the fixed chamber formed by the large inner diameter barrel section pushes the piston to compress the bottom space of the bullet, slowing down the phenomenon of the pressure drop at the bottom of the bullet caused by the rapid increase of the space behind the bullet. It is not difficult to see that by adopting the projectile launching base designed in the present application, only by designing the charging of the mobile chamber and the fixed chamber, it is possible to keep the projectile bottom pressure stable within the set value range without a rapid drop, so that the projectile bottom pressure has a platform effect, thereby increasing the initial velocity of the artillery. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of a missile launching base shown in an exemplary embodiment of the present application;

[0027] Figure 2 It is a schematic diagram of a structure in which a barrel is removed from a projectile launching base shown in an exemplary embodiment of the present application;

[0028] Figure 3 is a structural schematic diagram of a rear fire transfer tube shown in an exemplary embodiment of the present application;

[0029] Figure 4 is a schematic structural diagram of a forward fire tube shown in an exemplary embodiment of the present application;

[0030] Figure 5 It is a schematic diagram showing an exemplary embodiment of the present application in which the firing tube is disconnected from the piston after the projectile is in high-speed operation. DETAILED DESCRIPTION

[0031] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0032] The terms used in this application are only for the purpose of describing specific embodiments and are not intended to limit this application. Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The words "first", "second" and similar words used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, similar words such as "one" or "one" do not indicate a quantitative limit, but indicate that there is at least one, and if only "one" is referred to, it will be separately described. "Multiple" or "several" means two or more. Unless otherwise specified, similar words such as "front", "rear", "lower" and / or "upper", "top", "bottom" are only for the convenience of explanation, and are not limited to one position or one spatial orientation. Similar words such as "include" or "comprise" mean that the elements or objects appearing in front of "include" or "comprise" cover the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. The words "connected" or "connected" and the like are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0033] First, see Figures 1 to 3 , Figure 1 FIG. 1 is a schematic structural diagram of a missile launching base shown in an exemplary embodiment of the present application. Figure 2 FIG. 1 is a schematic diagram of a structure in which a barrel is removed from a projectile launching base according to an exemplary embodiment of the present application. Figure 3 The figure shows a schematic structural diagram of a rear-fire transmission tube according to an exemplary embodiment of the present application; the projectile launching seat comprises: a base 1, a barrel 2, a combustible cartridge 3, a piston 4 and a fire transmission tube 5.

[0034] The barrel 2 is formed by transitionally connecting circular tubes with different inner diameters, and the end of the circular tube with a large inner diameter of the barrel 2 is installed on the base 1; the combustible cartridge 3 is arranged in the inner wall of the barrel 2 with different inner diameters, and is against and located at the end of the small-diameter combustible cartridge 3 at the small-diameter port of the barrel 2 for placing the projectile 6; the piston 4 is provided with an ignition chamber 41, the first end of the piston 4 is connected to the small-diameter combustible cartridge, and the second end is clamped at the connection with the small-diameter end of the barrel 2, wherein the first and second gunpowder pipes 42 and 43 connected to the ignition chamber 41 are provided on opposite sides of the piston 4; the fire transfer tube 5 includes a front fire transfer tube 51, a rear fire transfer tube 52 and a fire transfer tube 53 with a built-in fuse, and the rear fire transfer tube 52 is provided with a concentric double tube section 521 of a specified length and a gap for storing gunpowder, such as Figure 2 As shown, the forward fire tube 51 is a hollow tube with one end open and the other end closed and used to store gunpowder. Figure 1 As shown, gunpowder holes 7 are distributed on the outer walls of the front fire transfer tube 51 and the concentric double tube section 521, the fire guide tube 53 passes through the rear fire transfer tube 52 and then is connected to the ignition chamber 41, the ignition chamber 41 is connected to the gap formed by the inner and outer tubes of the concentric double tube section 521 for storing gunpowder through the first gunpowder pipe 42, and is connected to the open end of the projectile 6 through the second gunpowder pipe 43, the projectile 6 and the rear fire transfer tube 52 are both connected to the piston 4, the end of the rear fire transfer tube 52 away from the piston 4 is connected to the base 1, and the end of the fire guide tube 53 away from the piston 4 is arranged in the base 1 in a way that the fuse is exposed to the outside of the base 1.

[0035] In this embodiment, the rear fire tube 52 can be made of high-strength steel to support the piston 4.

[0036] The barrel 2 is formed by transitionally connecting circular tubes with different inner diameters. The section with the larger inner diameter can be used as a fixed ignition chamber 41 for filling gunpowder, and the section with the smaller inner diameter can be used as a mobile ignition chamber 41 for filling gunpowder. Among them, the section with the smaller inner diameter can be understood as the section with the smallest inner diameter, and the section with the larger inner diameter can be understood as the section with the largest inner diameter. The section larger than the small inner diameter barrel 2 but smaller than the large inner diameter barrel 2 can also be filled with gunpowder.

[0037] The combustible cartridge 3 is arranged in the small inner diameter section and the large inner diameter section of the barrel 2, and is used to place gunpowder. One end of the combustible cartridge 3 placed in the small inner diameter barrel section abuts against the end of the small inner diameter barrel section, and the other end abuts against the projectile 6.

[0038] As an embodiment, the combustible cartridge 3 in the fixed chamber can be nested inside the base 1 by glue. As another embodiment, one end of the fire tube 53 adjacent to the base 1 is connected to the center of the base 1 by threading. As another embodiment, the base 1 can be made of steel material.

[0039] In this embodiment, the first end is named only for the convenience of distinguishing from the end in the following text, and is not used to limit a certain end. Correspondingly, the second end is named only for the convenience of distinguishing from the end in the previous text, and is not used to limit a certain end.

[0040] The first gunpowder pipe 42 is named only for the convenience of distinguishing it from the gunpowder pipes in the following text, and is not used to limit a certain gunpowder pipe. Correspondingly, the second gunpowder pipe 43 is named only for the convenience of distinguishing it from the gunpowder pipes in the previous text, and is not used to limit a certain gunpowder pipe.

[0041] In this embodiment, the first gunpowder pipe 42 is used to connect the ignition chamber 41 with the gap formed by the inner and outer tubes of the concentric double tube section 521 for storing gunpowder, so that after the gunpowder in the ignition chamber 41 is ignited, it enters the gap through the first gunpowder pipe 42 to ignite the gunpowder in the gap. Simultaneously, the second gunpowder pipe 43 is used to connect the ignition chamber 41 with the projectile 6, so that after the gunpowder in the ignition chamber 41 is ignited, it enters the projectile 6 through the second gunpowder pipe 43 to ignite the gunpowder in the projectile 6.

[0042] There are multiple gunpowder holes 7 distributed on the outer walls of the projectile 6 and the concentric double-tube section 521. As an embodiment, the multiple gunpowder holes 7 distributed on the outer walls of the projectile 6 and the concentric double-tube section 521 can be evenly distributed to synchronously ignite the gunpowder in the fixed ignition chamber 41 and the movable ignition chamber 41 through the gunpowder holes 7.

[0043] The end of the spark pipe 53 away from the piston 4 is arranged in the base 1 in such a way that the fuse is exposed outside the base 1, so as to ignite the gunpowder by igniting the fuse. The end of the spark pipe 53 connected to the base 1 may have a convex edge at a designated position, and the convex edge used for clamping on the base 1 may be a set number of columnar structures, or a circumferentially set plate-like structure, which is not limited in this embodiment.

[0044] In some embodiments, Figure 2 As shown, the rear fire transfer tube 52 also includes a single tube segment 522, one end of the single tube segment 522 is connected to the inner tube of the concentric double tube segment 521, and the other end of the single tube segment 522 is installed on the base 1, and the fire guide tube 53 runs through the pipeline connecting the single tube segment 522 and the concentric double tube segment 521.

[0045] In this embodiment, if Figure 2As shown, the single tube section 522 of the rear fire transfer tube 52 is connected to the inner tube of the concentric double tube section 521, and the outer wall of the single tube section 522 is connected to the outer wall of the concentric double tube section 521. The fire guide tube 53 passes through the inner tubes of the single tube section 522 and the inner tubes of the concentric double tube section 521 in sequence and then enters the ignition chamber 41 in the piston 4 through the first gunpowder pipeline 42.

[0046] In some embodiments, Figure 2 As shown, the piston 4 includes a front piston 44 and a rear piston 45, and the front piston 44 and the rear piston 45 are both provided with gunpowder grooves, and the two gunpowder grooves are connected in a manner of facing each other to form an ignition chamber 41. The end of the concentric double tube section 521 is connected to the rear piston 45 in a manner that the spark pipe 53 is connected to the ignition chamber 41, and the gap formed by the inner and outer tubes of the concentric double tube section 521 is connected to the rear piston 45 through the first gunpowder pipe 42. The open end of the projectile 6 is connected to the front piston 44 in a manner that the second gunpowder pipe 43 is connected to the piston 4.

[0047] In this embodiment, the design of the front piston 44 and the rear piston 45 can facilitate the loading and unloading of the gunpowder bag. The front piston 44 and the rear piston 45 can be connected in a detachable manner or in a bolted manner, which is not limited in this embodiment.

[0048] In the embodiment, both the front piston 44 and the rear piston 45 are provided with a pipeline for connecting the ignition chamber 41 with a fire pipe 53 .

[0049] In some embodiments, Figure 2 As shown, the rear piston 45 is provided with an annular groove in the circumference, and the projectile launching seat further includes an ammunition belt 8, which is wound in the annular groove and is in interference contact with the inner wall of the small inner diameter round tube in the barrel 2. In this embodiment, the provision of the ammunition belt 8 can prevent the high pressure of the mobile ignition chamber 41 from being transmitted to the fixed ignition chamber 41, so that the air pressure of the mobile ignition chamber 41 can be ensured to be within the set range. As the high pressure of the fixed ignition chamber 41 increases, the ammunition belt 8 will be squeezed into the straight bore portion of the barrel 2 with a small inner diameter.

[0050] In some embodiments, Figure 2 As shown, the rear piston 45 is an annular platform structure with a first gunpowder groove at the end, and a through hole for the spark guide 53 to pass through the bottom of the first gunpowder groove and a first gunpowder pipeline 42 for guiding the ignited gunpowder in the ignition chamber 41 to spray toward the gap are provided; an annular groove is circumferentially provided at a set position on the outer side wall of the annular platform structure;

[0051] The front piston 44 includes a boss piston structure 441 and a boss stabilizing structure 442. A second gunpowder groove is provided at the boss of the boss piston structure 441, and a second gunpowder pipe 43 is provided through the bottom of the second gunpowder groove; the boss stabilizing structure 442 is a plate-like structure that penetrates the plate surface and is provided with an annular tube for mounting the projectile 6. The boss piston structure 441 and the boss stabilizing structure 442 are connected in an installation manner in which the second gunpowder groove and the annular tube are deviated from each other, and the boss stabilizing structure 442 and the boss piston structure 441 are cooperatively connected in a manner in which the first gunpowder groove and the second gunpowder groove are oriented opposite to each other to form a sealed ignition chamber 41.

[0052] In this embodiment, the first gunpowder groove is named only for the convenience of distinguishing it from the gunpowder grooves in the following text, and is not used to limit a certain gunpowder pipeline. Correspondingly, the second gunpowder groove is named only for the convenience of distinguishing it from the gunpowder grooves in the previous text, and is not used to limit a certain gunpowder groove.

[0053] The boss stabilizing structure 442 is matched with the boss piston structure 441, and the boss stabilizing structure 442 is used to install the projectile 6 for easy disassembly, installation and maintenance. As an embodiment, the boss stabilizing structure 442 can be made of nylon material, and the projectile 6 is installed on the boss stabilizing structure 442 by adhesive, and the combustible cartridge 3 can be installed on the outside of the boss stabilizing structure 442 by adhesive.

[0054] In some embodiments, a mounting groove for cooperating with the end of the combustible cartridge 3 is circumferentially provided at the edge of the plate surface of the boss stabilizing structure 442 on the same side as the annular tube.

[0055] In other embodiments, the outer wall of the detonator tube 53 is coated with a heat-insulating layer to prevent the fuse from igniting the black powder in the rear detonator tube 52 through high temperature when the fuse is transmitting fire in the detonator tube 53. In other embodiments, the pipe section of the barrel 2 with a large inner diameter and the pipe section of the barrel 2 with a small inner diameter are connected in a straight and smooth transition. When the detonator is not ignited, the band 8 is clamped at the small inner diameter end of the barrel 2. In other embodiments, the connection strength between the front piston 44 and the rear piston 45 is greater than the pressure generated after the gunpowder in the ignition chamber 41 is ignited; thus, after the fixed chamber and the movable chamber are ignited, when the pressure difference between the front and rear of the piston is greater than the squeezing pressure of the band 8 and the thread strength of the rear piston 45 and the rear detonator tube 52, the piston 4 is pushed into the straight bore of the barrel 2 to move, and the fixed chamber gunpowder gas pushes the piston 4 to slow down the increase of the space behind the bullet, compresses the movable chamber gas, maintains the bullet bottom pressure, and makes the bullet bottom pressure have a platform effect. In some other embodiments, the first gunpowder pipe 42 is consistent in length and size with the first gunpowder pipe 42, so that the high-temperature and high-pressure gas generated by the combustion of the ignition powder bag in the piston 4 passes through the air hole at the same time, ensuring that the black powder in the projectile 6 and the rear ignition tube 52 are ignited at the same time.

[0056] In the present embodiment, after firing, the fuse in the detonator tube 53 is ignited and begins to transfer fire to the gunpowder bag in the ignition chamber 41 in the piston 4. The ignition chamber 41 burns instantly to produce a large amount of high-temperature and high-pressure gas, which transfers fire along the first gunpowder pipe 42 to the black gunpowder in the rear fire transfer tube 52, and at the same time transfers fire along the second gunpowder pipe 43 to the black gunpowder 14 in the projectile 6. The high-temperature and high-pressure gas generated after the black gunpowder is ignited passes through the gunpowder holes 7 evenly distributed on the rear fire transfer tube 52 to ignite the gunpowder in the fixed chamber. At the same time, the high-temperature and high-pressure gas generated after the black gunpowder is ignited passes through the gunpowder holes 7 evenly distributed on the projectile 6 to ignite the gunpowder in the mobile chamber. At this time, pressure is simultaneously established in the mobile chamber and the fixed chamber. The gas in the mobile chamber pushes the projectile 6 to start moving along the small inner diameter barrel 2. When the pressure difference between the front and rear of the piston is greater than the squeezing pressure of the bullet belt 8 and the connection strength between the piston 4 and the rear fire transfer tube 52, the connection between the piston 4 and the rear fire transfer tube 52 is destroyed. Figure 5 As shown, the rear piston 45 is separated from the rear fire tube 52, the ammunition belt 8 squeezes into the straight bore of the barrel 2, the piston 4 enters the straight bore of the barrel 2 and moves, and the combustion body of the fixed chamber pushes the piston 4 to compress the bottom space of the projectile, slowing down the phenomenon of the pressure drop at the bottom of the projectile caused by the rapid increase of the space behind the projectile. It can be seen that the projectile launching base provided by this embodiment can keep the pressure at the bottom of the projectile stable at a certain value without rapid decrease by designing the charge of the mobile chamber and the fixed chamber, so that the pressure at the bottom of the projectile has a platform effect. In other words, by slowing down the expansion of the space behind the projectile, the pressure at the bottom of the projectile is kept stable, so that the pressure at the bottom of the projectile has a platform effect, and the initial velocity of the projectile 6 can be increased, thereby increasing the initial velocity of the artillery, so as to be used for conventional artillery ultra-high-speed firing.

[0057] It can be seen that in the technical solution provided in the embodiment of the present application, the projectile launching base includes: a base 1, a barrel 2 formed by transition connection of round tubes with different inner diameters, a combustible cartridge 3, a piston 4 with an ignition chamber 41, and a fire transmission tube 5. The combustible cartridge 3 is arranged in the inner wall of the barrel 2 with different inner diameters, and a projectile 6 is placed at the end of the small-diameter combustible cartridge 3 located at the small inner diameter port of the barrel 2; the first end of the piston 4 is connected to the small-diameter combustible cartridge 3, and the second end is clamped in the connection between the barrel 2 and the small inner diameter end; the rear fire transmission tube 52 of the fire transmission tube 5 is provided with a gap for storing The concentric double-tube section 521 for releasing gunpowder, the projectile 6 of the fire transfer tube 5 is a hollow tube with one end open and the other end closed and used to store gunpowder inside the tube, the outer walls of the projectile 6 and the concentric double-tube section 521 are distributed with gunpowder holes 7, the fire guide tube 53 passes through the rear fire transfer tube 52 and is connected to the ignition chamber 41, the ignition chamber 41 is connected to the gap of the concentric double-tube section 521 through the first gunpowder pipeline 42, and is connected to the open end of the projectile 6 through the second gunpowder pipeline 43, the projectile 6 and the rear fire transfer tube 52 are both connected to the piston 4, and the end of the rear fire transfer tube 52 away from the piston 4 is connected to the base 1. It can be seen that the technical solution provided by the embodiment of the present application does not need to improve the original overall structure of the barrel nor increase the amount of gunpowder. Instead, the piston enters the small inner diameter of the barrel as the mobile chamber and moves in the straight bore under the ignition of the ignition chamber. The combustion body of the fixed chamber formed by the barrel section with a large inner diameter pushes the piston to compress the bottom space of the projectile, thereby slowing down the phenomenon of the pressure drop at the bottom of the projectile caused by the rapid increase of the space behind the projectile. It is not difficult to see that the projectile launching base designed by the present application can keep the bottom pressure of the projectile stable within the set value range without the phenomenon of rapid decline only by designing the charge of the mobile chamber and the fixed chamber, so that the bottom pressure of the projectile has a platform effect, thereby increasing the initial velocity of the gun.

[0058] On the second aspect, the embodiments of the present application also provide a launching device, which includes the projectile launching base and the projectile 6 described in any of the above embodiments, so that there is no need to change the structure of the original barrel 2, and the bottom pressure of the projectile can be kept stable within the set value range without a rapid drop by designing the charging of the mobile chamber and the fixed chamber, so that the bottom pressure of the projectile has a platform effect, thereby increasing the initial velocity of the artillery.

[0059] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A launching base for maintaining the bottom pressure of a missile, characterized in that: The projectile launching seat comprises: Base, The barrel is formed by transitionally connecting round tubes with different inner diameters, and the end of the round tube with a larger inner diameter of the barrel is installed on the base; A combustible cartridge is arranged inside the inner wall of the barrel with different inner diameters, against and located at the end of the small-diameter combustible cartridge at the small-diameter port of the barrel for placing a projectile; A piston with an ignition chamber, wherein the first end of the piston is connected to the small-diameter combustible cartridge, and the second end is clamped to the connection between the barrel and the small inner diameter end, wherein the first and second gunpowder pipes communicating with the ignition chamber are provided on opposite sides of the piston; A fire transfer tube, comprising a front fire transfer tube, a rear fire transfer tube and a fire transfer tube with a built-in fuse, the rear fire transfer tube being provided with a concentric double tube section of a specified length and a gap for storing gunpowder, the front fire transfer tube being a hollow tube with one end open and the other end closed and the tube being used to store gunpowder, gunpowder holes being distributed on the outer walls of the front fire transfer tube and the concentric double tube section, the fire transfer tube being connected to the ignition powder chamber after passing through the rear fire transfer tube, the ignition powder chamber being connected to the gap for storing gunpowder formed by the inner and outer tubes of the concentric double tube section through the first gunpowder pipeline, and being connected to the open end of the front fire transfer tube through the second gunpowder pipeline, the front fire transfer tube and the rear fire transfer tube being both connected to the piston, the end of the rear fire transfer tube away from the piston being connected to the base, and the end of the fire transfer tube away from the piston being arranged in the base in a manner that the fuse is exposed to the outside of the base.

2. The missile launching base according to claim 1, characterized in that: The rear fire transfer tube also includes a single tube segment, one end of which is connected to the inner tube of the concentric double tube segment, and the other end of the single tube segment is installed on the base, and the fire guide tube runs through the pipeline connecting the single tube segment and the concentric double tube segment.

3. The missile launching base according to claim 2, characterized in that: The piston comprises a front piston and a rear piston, both of which are provided with a gunpowder groove, and the two gunpowder grooves are connected in a manner of facing each other to form an ignition chamber; The end of the concentric double tube section is connected to the rear piston in a manner that the ignition tube is connected to the ignition chamber, and the gap formed by the inner and outer tubes of the concentric double tube section is connected to the rear piston through the first gunpowder pipeline; The open end of the front fire tube is connected to the front piston in a manner that the second gunpowder pipe is connected to the piston.

4. The missile launching base according to claim 3, characterized in that: The rear piston is provided with an annular groove in its circumference, and the projectile launching seat also includes an ammunition belt, which is wound in the annular groove and is in interference contact with the inner wall of the small inner diameter circular tube in the barrel.

5. The missile launching base according to claim 4, characterized in that: The rear piston is an annular platform structure with a first gunpowder groove at the end, and a through hole for the spark pipe to pass through the bottom of the first gunpowder groove and a first gunpowder pipeline for guiding the ignited gunpowder in the ignition chamber to spray toward the gap are provided; an annular groove is circumferentially provided at a set position on the outer side wall of the annular platform structure; The front piston includes a boss piston structure and a boss stabilizing structure, a second gunpowder groove is provided at the boss of the boss piston structure, and a second gunpowder pipe is provided through the bottom of the second gunpowder groove; the boss stabilizing structure is a plate-like structure that penetrates the plate surface and is provided with an annular tube for installing the front fire tube, the boss piston structure and the boss stabilizing structure are connected in an installation manner in which the second gunpowder groove and the annular tube are deviated from each other, and the boss stabilizing structure and the boss piston structure are cooperatively connected in a manner in which the first gunpowder groove and the second gunpowder groove are oriented opposite to each other to form a sealed ignition chamber.

6. The missile launching base according to claim 5, characterized in that: An installation groove for matching and installing with the end of the combustible cartridge is circumferentially provided at the edge of the plate surface located on the same side as the annular tube in the boss stabilizing structure.

7. The missile launching base according to claim 1, characterized in that: The outer wall of the spark guide tube is coated with a heat insulation layer.

8. The missile launching base according to claim 3, characterized in that: The connection strength between the front piston and the rear piston is greater than the pressure generated by the gunpowder in the ignition chamber after ignition; or / and The first gunpowder pipe and the second gunpowder pipe are consistent in length and size.

9. The missile launching base according to claim 3, characterized in that: The tube section of the barrel with a large inner diameter and the tube section of the barrel with a small inner diameter are connected in a straight and smooth transition. When the fuse is not ignited, the bullet belt is clamped at the end of the small inner diameter tube adjacent to the barrel.

10. A launching device, characterized in that: The launching device comprises a projectile launching base and a projectile as described in any one of claims 1 to 9.

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